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Date: Mon, 08 Jun 2015 07:44:35 -0700
From: Daniel Frey <djqfrey@gmail.com>
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To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] some keyboard lag
References: <55758401.6090904@xunil.at> <55758906.4030207@wht.com.au> <55758B72.20206@xunil.at>
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On 06/08/2015 05:32 AM, Stefan G. Weichinger wrote:
> Am 2015-06-08 um 14:22 schrieb Andrew Lowe:
> 
>> 	Any chance this is a Logitech K520r wireless keyboard? I have one of
>> these and it at times "goes to sleep" for several seconds. Logitech know
>> about the problem but refuse to do anything. A google search will reveal
>> all the gory details. If on the other hand it isn't, sorry, got nothing
>> to offer.
> 
> No, it's wired keyboard by Lenovo: SK-8815
> 
> And, by the way, kernel 4.0.5 ... I cross-checked with 4.0.1 and 4.0.4
> ... same issue (maybe also the same problematic setting somewhere)
> 
> thanks, S
> 
> 

I would check if USB autosuspend is set for your keyboard, and if it is,
disable it on the keyboard.

Dan